If it is an old house that has been built for more than 20 or 30 years, and the sitting direction is not worthy of the three yuan and nine yuan transportation when building a house, the feng shui can't be improved. The former feng shui master will ask the roof to be lifted to let the sun shine directly into the house for at least 100 days. It is said that this can change the house transportation of the old house into the current Yuanyun, which may be beneficial to the layout of Geely.
This practice can still be used in traditional houses in rural areas. If it is a building in a city, the same purpose can be achieved by doing large-scale decoration.